public void TestInstructions()
{
VirtualMachine virtualMachine = new VirtualMachine();
PartialJITCompiler jitCompiler = new PartialJITCompiler(virtualMachine);
//Sub
virtualMachine.SetRegisterValue(Registers.R1, 12);
virtualMachine.SetRegisterValue(Registers.R2, 5);
Instruction[] methodBody = new Instruction[]
{
new RFormatInstruction(OperationCodes.Sub.Code(), OperationXCodes.Sub, 1, 2, 3).AsInstruction()
};
var jittedMethod = jitCompiler.GenerateMethod("", methodBody);
jitCompiler.InvokeJitedMethod(jittedMethod);
Assert.AreEqual(virtualMachine.GetRegisterValue(Registers.R3), 7);
}
public void TestFunction()
{
VirtualMachine virtualMachine = new VirtualMachine();
PartialJITCompiler jitCompiler = new PartialJITCompiler(virtualMachine);
virtualMachine.SetRegisterValue(Registers.R1, 10);
virtualMachine.SetRegisterValue(Registers.RA, 1337);
Instruction[] methodBody = new Instruction[]
{
new IFormatInstruction(OperationCodes.Addi.Code(), 1, 1, -1).AsInstruction(),
new RFormatInstruction(OperationCodes.Ret.Code(), OperationXCodes.Ret, 0, 0, 0).AsInstruction()
};
var jittedMethod = jitCompiler.GenerateMethod("", methodBody, true);
jitCompiler.InvokeJitedMethod(jittedMethod);
Assert.AreEqual(9, virtualMachine.GetRegisterValue(Registers.R1));
Assert.AreEqual((uint)1337, virtualMachine.ProgramCounter);
}
public void TestBenchmark()
{
VirtualMachine virtualMachine = new VirtualMachine();
PartialJITCompiler jitCompiler = new PartialJITCompiler(virtualMachine);
FullJITCompiler fullJitCompiler = new FullJITCompiler(virtualMachine);
int count = 2000;
Instruction[] methodBody = new Instruction[]
{
new IFormatInstruction(OperationCodes.Addi.Code(), 1, 1, -1).AsInstruction(),
new IFormatInstruction(OperationCodes.Addi.Code(), 2, 2, 1).AsInstruction(),
new IFormatInstruction(OperationCodes.Bne.Code(), 0, 1, -3 * 4).AsInstruction()
};
var jittedMethod = jitCompiler.GenerateMethod("", methodBody);
TimeSpan jitTime = new TimeSpan();
TimeSpan vmTime = new TimeSpan();
//Partial jitter
virtualMachine.SetRegisterValue(Registers.R1, count);
Stopwatch timer = Stopwatch.StartNew();
jitCompiler.InvokeJitedMethod(jittedMethod);
timer.Stop();
jitTime = timer.Elapsed;
//VM
virtualMachine.SetRegisterValue(Registers.R1, count);
timer = Stopwatch.StartNew();
for (int i = 0; i < methodBody.Length; i++)
{
virtualMachine.ExecuteInstruction(methodBody[i].Data);
}
timer.Stop();
vmTime = timer.Elapsed;
}